<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="$router.push('/add')">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 表格区域 商品列表 -->
      <el-table :data="goodsList" border stripe style="width: 100%">
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label='商品名称' prop="goods_name"></el-table-column>
        <el-table-column label='商品价格(元)' prop="goods_price" width="95px"></el-table-column>
        <el-table-column label='商品重量' prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label='创建时间' width="140px">
          <template v-slot="scope">{{scope.row.add_time | dateFormat('yyyy-MM-DD hh:mm:ss')}}</template>
        </el-table-column>
        <el-table-column label='操作' width="130px">
          <template v-slot="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" size="mini" icon="el-icon-edit" circle></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" size="mini" icon="el-icon-delete" circle @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 10
      },
      // 商品列表数据
      goodsList: [],
      // 总数据条数
      total: 0
    }
  },
  mounted () {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      this.goodsList = res.data.goods
      this.total = res.data.total
      // console.log(res)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange (val) {
      // console.log(val)
      this.queryInfo.pagesize = val
      this.getGoodsList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (val) {
      // console.log(val)
      this.queryInfo.pagenum = val
      this.getGoodsList()
    },
    // 删除用户
    removeById (id) {
      this.$confirm('确认删除?', '警告', {
        confirmButtonText: '确认',
        cancelButtonText: '取消',
        type: 'warning',
        callback: async action => {
          if (action === 'confirm') {
            const { data: res } = await this.$http.delete('goods/' + id)
            if (res.meta.status !== 200) {
              return this.$message.error('删除失败')
            } else {
              this.$message.success('删除成功')
              this.getGoodsList()
            }
          }
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>

</style>
